Hi, Using Aspire 4 here and love it, upgraded from VCarve pro an it was worth every penny
As for pasting a core vector into an existing project.......
Not something I have had a need to try before as I use Illustrator but the short answer seems to be no!
CDR is not a supported format
Supported vector formats are DXF, DW, EPS, AI, PDF
If you save the corel file to dxf you can import the vector without a issue
Hope that is of some help
Nigel